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  1. Core Server
  2. SERVER-22398

Add SystemInfo::numAvailableCores

    • Type: Icon: Improvement Improvement
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • 3.3.3
    • Affects Version/s: 3.3.1
    • Component/s: Portability
    • None
    • Fully Compatible
    • Platforms 10 (02/19/16), Platforms 11 (03/11/16)

      SystemInfo::numCores is less useful than might be desired, because many forms of process management can limit access to a subset of total cores. This causes us to scale certain internal subsystems at suboptimal levels by assuming more processing than we actually have available.

      It would useful to have a new value available, perhaps numAvailableCores, which would return a num <= ::numCores.

      Consider the implementation of gnu nproc and investigate if a portable solution exists.

            Assignee:
            waley.chen Waley Chen
            Reporter:
            mira.carey@mongodb.com Mira Carey
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              Created:
              Updated:
              Resolved: